Fixed the text to a link to the populate_sdk_* class.
The link was good but the text was old.
(From yocto-docs rev: dc892cdf618c008a9ce615c31ef643987dfcca13)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>